It is well known that the real behaviour of geomechanical structures quite often differs from that predicted by numerical analyses carried out at the design stage, even though sophisticated computer programs are often used. This discrepancy may be simply because of the various uncertainties of geomaterials. In order to fill the gap between real and predicted behaviour of geomechanical structures, field monitoring is carried out to verify the input data used in the original design, as well as to assess the integrity of the structures during construction. Nowadays, there are many different monitoring techniques available. However, it should be noted that the field monitoring data are only numbers unless they are properly interpreted.
TC220 helps bring together practitioners, academics and suppliers, to exchange knowledge on field monitoring. For more information visit our website at www.field-monitoring.org and use the publications below.
Useful Reading List
Client guide to instrumentation and monitoring. Published by the Chartered Institution of Civil Engineering Surveyors for the Survey Liaison Group, London, 2017.
EN ISO 18674-1:2015 Geotechnical investigation and testing — Geotechnical monitoring by field instrumentation. Part 1: General rules. Published by CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels.
EN ISO 18674-2:2016 Geotechnical investigation and testing — Geotechnical monitoring by field instrumentation. Part 2: Measurements along a line - extensometers. Published by CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels.
EN ISO 18674-3:2017 Geotechnical investigation and testing — Geotechnical monitoring by field instrumentation. Part 3: Measurements across a line - inclinometers. Published by CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels.
Geotechnical instrumentation for monitoring field performance. J. Dunnicliff. Published by J. Wiley & Sons Inc, New York, 1993. ISBN: 0-471-00546-0.
Geotechnical Instrumentation News. Bi-Tech Publishers Ltd, Canada. http://www.geotechnicalnews.com/instrumentation_news.php
ICE Manual of Geotechnical Engineering. J. Burland, T. Chapman, H. Skinner and M. Brown. Chapter 94: Principles of geotechnical monitoring. J. Dunnicliff, W.A. Marr and J. Standing Chapter 95: Types of geotechnical instrumentation and their usage. J. Dunnicliff Published by ICE Publishing, London, 2012. ISBN: 9780727736529.
Monitoring Underground Construction. The British Tunnelling Society. Published by ICE Publishing, London, 2011. ISBN: 9780727741189.
Use of Inclinometers for Geotechnical Instrumentation on Transportation Projects, State of the Practice. Transportation Research Circular Number E-C129, October 2008. Transportation Research Board, Washington, DC.